package main

import (
	"fmt"
	"io/ioutil"
	"log"
	"net/http"

	"github.com/gorilla/mux"
)

func RssHandler(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/rss+xml")
	w.WriteHeader(http.StatusOK)
	data, err := ioutil.ReadFile("feed.rss")
	if err != nil {
		panic(err)
	}
	w.Header().Set("Content-Length", fmt.Sprint(len(data)))
	fmt.Fprint(w, string(data))
}

func JsonHandler(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(http.StatusOK)
	data, err := ioutil.ReadFile("feed.json")
	if err != nil {
		panic(err)
	}
	w.Header().Set("Content-Length", fmt.Sprint(len(data)))
	fmt.Fprint(w, string(data))
}

func HomeHandler(w http.ResponseWriter, r *http.Request) {
	data, err := ioutil.ReadFile("assets/index.html")

	if err == nil {
		w.Write(data)
	} else {
		w.WriteHeader(404)
		w.Write([]byte("404 Something went wrong - " + http.StatusText(404)))
	}
}

func main() {
	go watch()
	r := mux.NewRouter()
	r.PathPrefix("/assets/").Handler(http.StripPrefix("/assets/", http.FileServer(http.Dir("assets/static"))))
	r.PathPrefix("/download/").Handler(http.StripPrefix("/download/", http.FileServer(http.Dir("podcasts"))))
	r.HandleFunc("/", HomeHandler)
	r.HandleFunc("/rss", RssHandler)
	r.HandleFunc("/json", JsonHandler)
	http.Handle("/", r)
	log.Fatal(http.ListenAndServe(":8000", r))
}